/*成绩统计*/
#wait {
    width: 980px;
    margin: 100px auto 0px;
    text-align: center;
}

#wait img {
    width: 50px;
    height: 50px;
}

/*饼图*/
#pie img {
    width: 500px;
    height: 500px;
    vertical-align: top;
}

#charts {
    width: 980px;
    margin: 0px auto 0px;
}

#exam-title {
    text-align: center;
    font-size: 20px;
    font-weight: bold;
}

/*显示一个绿色方块*/
.green-rect, .red-rect {
    display: inline-block;
    width: 20px;
    height: 20px;
    vertical-align: middle;
}

.green-rect {
    background-color: green;
}

.red-rect {
    background-color: red;
}